Lifting-jack.



P. q. HARRAH. LIPTING JACK.

APPLATION FILED JUE'ZO, 1913y 1,087,879., Patented Feb. 17, 1914.

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.C9/Wimax@ I? P. J. HARRAH..

LIFTING JAGK.` APPLIUATION FILED JUNI: zo, 1913.

1,087,879, resented Feb. 17, wie.

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the Wings out of engagement with said awls.

3. A lifting jack comprising a rack-bar having teeth in its oppositeedges, a movable housing iitted on said rack-bar and having oppositelyextended horizontal rests, avlever having a forked end ulcrumed on saidhousing, one side of seid forked end having a bulged portion, pawlspivoted at their lower ends to said forked end on opposite sides of thefulcrurn ofthe lever, a spring connecting said pawls located in saidbulged portion, a vertically movable. slide having a slot and providedwith lateral Wings for engaging said pawls, a spring acting down- Wardlyon said slide, a bolt vmounted on the housing and extended through saidslot, and e earn pivoted on said bolt for engaging seid slide to hold itin its inactive position.

In testimony whereof, I have signed this speeication in the presence oftwo subscribing Witnesses.

PHILIP J. HARRAH. Witnesses:

HARVEY D. HATFIELD, W. H. WooDALL,

